30503400251200 has 84 divisors (see below), whose sum is σ = 75961735950240. Its totient is φ = 12054355709440.

The previous prime is 30503400251197. The next prime is 30503400251209. The reversal of 30503400251200 is 215200430503.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503400251209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114714340 + ... + 114979939.

It is an arithmetic number, because the mean of its divisors is an integer number (904306380360).

Almost surely, 2^{30503400251200} is an apocalyptic number.

It is an amenable number.

30503400251200 is an abundant number, since it is smaller than the sum of its proper divisors (45458335699040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30503400251200 is a wasteful number, since it uses less digits than its factorization.

30503400251200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229694384 (or 229694369 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30503400251200 its reverse (215200430503), we get a palindrome (30718600681703).

The spelling of 30503400251200 in words is "thirty trillion, five hundred three billion, four hundred million, two hundred fifty-one thousand, two hundred".